package com.itheima.mapper;

import com.itheima.pojo.Article;
import org.apache.ibatis.annotations.*;

import java.util.List;

/**
 * @author panweiwei
 */
@Mapper
public interface ArticleMapper {
    /**
     * 新增文章
     *
     * @param article
     * @return
     */
    @Insert("insert into article (title,content,cover_img,state,category_id,create_user,create_time,update_time)" +
            "values (#{title},#{content},#{coverImg},#{state},#{categoryId},#{createUser},#{createTime},#{updateTime})")
    void add(Article article);

    /**
     * 文章分页查询
     *
     * @param categoryId 分类id
     * @param state      状态
     * @return 返回分页
     */
    List<Article> list(Integer userId, Integer categoryId, String state);


    /**
     * 获取文章详情
     *
     * @param id 文章id
     * @return
     */
    @Select("select * from article where id =#{id}")
    Article findById(Integer id);

    /**
     * 更新文章
     *
     * @param article
     * @return
     */
    @Update("update article set  title = #{title}, content = #{content}, cover_img = #{coverImg}, state = #{state}, update_time =#{updateTime} where id =#{id} ")
    void update(Article article);

    /**
     * 根据id删除文章
     *
     * @param id 文章主键id
     * @return
     */
    @Delete("delete from article where id =#{id}")
    void deleteById(Integer id);
}
